INFLUENCE OF ECCENTRICITIES OF DISTURBING FORCES APPLIED TO AN ELASTIC MECHANICAL SYSTEM MODELED AS A SOLID BODY WITH CONSTRUCTIVE SYMMETRIES

Nicusor DRAGAN, Aurora Maria POTIRNICHE, Gigel Florin CAPATANA

Abstract


The paper presents the analysis of the dynamic parameters of a rigid body with elastic bearings and constructive symmetries modeled as a six degrees-of-freedom mechanical system disturbed by a harmonic vertical eccentric force. The constructive symmetries lead to the decoupling of the six movements of the mechanical system (three translations and three rotations) in subsystems with coupled movements (translations and rotations). For each of the decoupled subsystems (with coupled movements), there were determined the calculation relations of the amplitudes of the steady-state forced vibrations of the subsystems disturbed by a harmonic vertical force with eccentricities to the vertical line of the center of gravity of the solid body.


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